Ventilator.



W. PERROT.

VENTILATOR.

1922991 n APPLICATION FILED MAE-31.1916- Patentedllune 5 v 2 SHEETS-SHEET l.

1m: Noun/s PETERS co.. PHDYU-LITNQ. WASMINGmN. n c.

W. PERHOT.

VENTILATOR.

APPLICATION FILED MAR. 3|, I916.

5, 2 SHEETS-SHEET 2.

Patented June Attorneys WILLIAM PEBROT, OF OTTAWA, ILLINOIS.

VENTILATOB.

Specification of Letters Patent.

Patented June 5, 1917.

Application filed March 31, 1916. Serial No. 88,035.

To all whom it may concern:

Be it known that I, IVILLIAM Pnnnor, a citizen of the United States, residing at Ottawa, in the county of La Salle and State of Illinois, have invented a new and useful Ventilator, of which the following is a specification.

The present invention appertains to ventilating devices, and aims to provide novel and improved means for applying a ventilating screen or fabric to a window, whlch will be automatically extended across the opening between the upper sash and lintel, when the upper sash is lowered to admit air from the top of the window.

It is the object of the invention to provide a device of the nature indicated, which is extremely simple and inexpensive in construction, which embodies but few simple parts, which can be readily assembled and applied-to the window without cutting away the wood or otherwise marring the window construction, which will not interfere with the movement of the upper sash, which will prevent the lower sash from injuring the roller and accompanying parts, which will not be exposed to the weather when the upper sash is raised, and which will be thoroughly practical and elficacious in use.

"With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter de scribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 is an inside View of a window showing the present device applied thereto with the upper sash lowered, parts being broken away.

F 2 isa perspective View of the screen and its roller.

Figs. 3 and 4t are perspective views of the brackets or holding members for the roller.

Figs. 5 and 6 are enlarged sectional cletails taken on the respective lines 55 and 6-6 of Fig. 1.

Fig. 7 is an enlarged sectional detail taken on the line 77 of Fig. 1.

In carrying out the invention, there is employed a spring roller 1, similar to an ordinary window shade roller, upon which is rolled a screen 2 of pliant fabric. The roller 1 is supported adjacent the lintel of the window casing between the upper ends of the sash ways of the lower sash, by means of a pair of brackets or holding members, comprising plates 3 having apertures 4 adjacent their upper ends for receiving the terminals or trunnions 5 of the roller 1. (due aperture l is round for the rotation therein of one terminal 5, and the other aperture 4: is elongated to hold the respective terminal or spring shaft of the roller stationary, whereby when the screen 2 is unwound and pulled downwardly, the spring tension of the roller 1 is increased as in an ordinary shade roller, to wind up the screen when it is slackened. Since the details of the roller are practically the same as an ordinary shade roller, no detailed description or illustration will be necessary, since no claim is made 'to the roller construction. The plates 8 are provided at any suitable point, preferably adjacent their lower ends, with apertures 6 through which nails, screws or other securing elements can he passed to take into the frame or casing of the window. The plates 3 fit snugly within the upper ends of the sash ways 7 of the lower sash against the jambs 8 of the window casing, and are secured to said jambs as above indicated.

The plates 8 are provided with recesses 9 extending from the lower ends thereof to points between their ends and arranged adjacent the outer edges of the plates which are nearest the outer side of the window, and said outer edges of the plates have short flanges 10 extending from the upper ends of the plates to the upper ends of the recesses 9 and arranged at right angles with the plates. The inner edges of the plates 3 are provided with flanges 11 arranged at right angles with the plates and coextensive in length therewith, and the lower ends of the plates 3 have'fianges 12 extending from the flanges 11 to the recesses 9 and arranged at right angles with the plates 3. The flanges 10 fit against the parting strips 13 of the window casing, while the flanges 11 fit snugly against the inner stop strips 14. The flanges in fitting against said strips assist in holding the plates in proper position, and but a single securing el ment need be employed with each plate with this arrangement.

Bars 15 and 16 of wood, metal or other suitable material are attached to the lower end of the screen 2, said bars being clamped together by means of screws 17 and clamp the lower end of the screen 2 therebetween. The bar 16 is preferably provided with a longitudinal groove 18 receiving the lower terminal of the screen, whereby to securely anchor the screen to the bars. The bar 15 is shorter than the bar 16 to fit between the parting strips 13 and to abut said strips, while the ends of the bar 16 overlap the inner sides of said strips and extend close adjacent the jambs 8. These bars 15-16 hold the lower end of the screen in place, and are attached to the upper portion of the upper sash of the window. Thus, a pair of screw eyes 19 are engaged with and depend from the bar 15, and are engageable with hooks 20 attached to the upper portion of the upper sash 21. The bar 15 is disposed immediately adjacent the inner face of the upper sash, and the hooks 20 in engaging the eyes 19 will hold the bars 15-46 in place adjacent the upper sash and parting strips.

In operation, when the upper sash 21 is lowered, the bars 15-16 are pulled downwardly therewith along the parting strips, thereby pulling the screen 2 downwardly across the opening between the upper sash and lintel. The edges of the screen 2 rest against or are immediately adjacent the parting strips, whereby insects will be excluded, The screen will diffuse the air, to

prevent a draft, yet providing for thorough ventilation of the room. Then the upper sash is raised, the screen in being slackenod, will be wound upon the roller 1, the same as a shade is rolled upon its roller, whereby the screen is automatically moved out of the way when the-upper sash is returned to normal raised position. The bar 16 is movable into'the recesses 9 when the upper sash is raised, above the lower ends of the plates 3. The flanges 12 act as stops to limit the upward movement of the lower sash 2:2, whereby the lower sash in being raised cannot bump against the roller 1 or bars 151G when they are raised. The bar 15 can be readily detached from the upper sash, when it is desired to lower the upper sash without using the screen, and the several parts can be readily assembled and separated for purpose of cleaning, repair or replacement.

The roller 1 can be used with or without the usual dogs or pawls.

Having thus described the invention, what is claimed as new is:

A device of the character described, comprising a pair of brackets embodying plates adapted to be secured to the jambs of a win dow casing within the upper ends of the sash ways of the lower sash, a roller whose terminals are engageable with said plates adjacent their upper ends, a screen wound upon the roller, a pair of bars secured together, the lower end of the screen being clamped between said bars, one bar being shorter than the other to fit snugly between the parting strips of the window, the ends of the other strip being adapted to overlap said parting strips, said plates having recesses for receiving the second mentioned bar, means for attaching one of said bars to the upper portion of the upper sash, the lower ends of said plates having flanges to limit the upward movement of the lower sash.

In testimony that I claim the foregoing as my own, I have hereto ElffiXGd my signature in the presence of two witnesses.

lVILLIAM PERR OT.

Witnesses GEORGE O. GRovER, HENRY L. ARNOLD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

